ACB(Set Variety, Attract out Kind) This is the up coming-technology type ACB with dynamic characteristic dependability considerably enhanced by adopting digital overcurrent relay inbuilt with significant-precision A/D conversion circuit useful for measuring instruments.S? d?ng cho h? th?ng ?i?n h? th? khi ngu?n c?p ph? t?i b? gián ?o?n B? chuy?n m